isoflavone

noun

iso·​fla·​vone ˌī-sō-ˈflā-ˌvōn 

: a colorless, crystalline, bioactive ketone C₁₅H₁₀O₂

also : any of various usually hydroxyl derivatives of isoflavone (such as genistein and daidzein) that are plant compounds possessing antioxidant and estrogenic activity in the body

Examples of isoflavone in a Sentence

Recent Examples on the Web

Soy Products Soy foods like tofu, edamame, and soy milk provide plant protein, healthy fats, and isoflavones. —Morgan Pearson, Verywell Health, 26 Sep. 2025

In addition to their high fiber content, chickpeas provide phytonutrients like isoflavones and saponins. —Jillian Kubala, Health, 23 Sep. 2025

Larger and longer-term studies are needed further to explore the potential benefits of isoflavones on prostate health. —Brittany Poulson, People.com, 8 July 2025

Word History

First Known Use

1926, in the meaning defined above

Rhymes for isoflavone

• aldosterone
• anticyclone
• progesterone
• testosterone
• acetone
• anglophone
• baritone
• bourguignon
• buspirone
• chaperon
• chaperone
• cobblestone

Medical Definition

isoflavone

noun

iso·​fla·​vone -ˈflā-ˌvōn 

: a bioactive ketone C₁₅H₁₀O₂ noted for its numerous derivatives that are found in plants (as the soybean) and have antioxidant and estrogenic activity

also : any of these derivatives (as daidzein or genistein)